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   pmdamemcache    ( 1 )

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Имя (Name)

pmdamemcache - memcached performance metrics domain agent (PMDA)

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Описание (Description)

This PMDA extracts performance data from memcached, a distributed
       memory caching daemon commonly used to improve web serving
       performance.  A farm of memcached processes over multiple servers
       can be utilised by a single web application, increasing the total
       available object cache size, and decreasing the database load
       associated with smaller cache sizes.  This system is described in
       detail at http://www.danga.com/memcached .

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Установка (Installation)

Configure pmdamemcache to extract the values from set of hosts
       used in the memcache farm.  These hosts can be listed in the
       $PCP_PMDAS_DIR/memcache/memcache.conf file, in the format (i.e.
       Perl array) described at the top of pmdamemcache.pl.  A custom
       refresh rate can also be configured using this mechanism.

            # cd $PCP_PMDAS_DIR/memcache
            # [ edit memcache.conf ]

       Once this is setup, you can access the names and values for the
       memcache performance metrics by doing the following as root:

            # cd $PCP_PMDAS_DIR/memcache
            # ./Install

       If you want to undo the installation, do the following as root:

            # cd $PCP_PMDAS_DIR/memcache
            # ./Remove

       pmdamemcache is launched by pmcd(1) and should never be executed
       directly. The Install and Remove scripts notify pmcd(1) when the
       agent is installed or removed.

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Файлы (Files)

$PCP_PMDAS_DIR/memcache/memcache.conf
           optional configuration file listing monitored memcache
           instances

       $PCP_PMDAS_DIR/memcache/Install
           installation script for the pmdamemcache agent

       $PCP_PMDAS_DIR/memcache/Remove
           undo installation script for the pmdamemcache agent

       $PCP_LOG_DIR/pmcd/memcache.log
           default log file for error messages from pmdamemcache

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Окружение PCP (PCP environment)

Environment variables with the prefix PCP_ are used to
       parameterize the file and directory names used by PCP. On each
       installation, the file /etc/pcp.conf contains the local values
       for these variables.  The $PCP_CONF variable may be used to
       specify an alternative configuration file, as described in
       pcp.conf(5).

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Смотри также (See also)

PCPIntro(1) and pmcd(1).

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